<svg width='100%' height='100%' 
  xmlns='http://www.w3.org/2000/svg' 
  xmlns:html="http://www.w3.org/1999/xhtml"
  onload='boom()'>
  
<html:script>
  
function boom()
{
  try {
    document.getElementById("path").pathSegList.getItem(-10000000);
  } catch(e) {
  }
}

</html:script>

<path id='path' d='M300,25 C320,250 375,150 400,150 S400,340 330,350'/>

</svg>
